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Mita Industrial Co., Ltd.

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USPTO Granted Patents = 1,344

EPO Patents = 2

Trademarks = 1

Forward Citations = 11,542

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914 inventors (with patents filed for the assignee):

Tatsuo Aizawa (53 out of 53 patents)

Nobuhiro Miyakawa (44 out of 44 patents)

Haruo Yamamoto (38 out of 43 patents)

4. Yoichiro Irie (30 out of 31 patents)

5. Yutaka Shigemura (28 out of 30 patents)

6. Masaya Fujimoto (26 out of 32 patents)

7. Hiroshi Kimura (25 out of 33 patents)

8. Nobuhiko Kozuka (24 out of 24 patents)

9. Masahiko Hisajima (24 out of 26 patents)

10. Hiroyuki Harada (23 out of 69 patents)

11. Shigeo Koyama (23 out of 23 patents)

12. Masayuki Mizuno (22 out of 28 patents)

13. Masahiro Sako (21 out of 25 patents)

14. Eiichi Miyamoto (20 out of 36 patents)

15. Yasushi Kamezaki (20 out of 21 patents)

Core Competencies:

Toner Cartridge

Document Feeder

Electrophotographic Material

Image Processing

Automatic Document Feeder

Photosensitive Drum

Image Forming Apparatus

Toner Supply

Image Data Processing

Electromagnet Clutch

Facsimile Machine

Sheet Transportation

1,344 patents: Sort by Forward Citations

1. 6226069 - Stackless continuous dual-sided copying method in photocopiers (2001-05-01),

2. D436986 - Toner supplying cartridge for an image forming apparatus (2001-01-31),

3. 6174639 - Positive charging color toner (2001-01-16),

4. 6145828 - Sheet conveyor single-handed parting engagement mechanism (2000-11-14),

5. 6115150 - Image data processing apparatus and image data processing process (2000-09-05),

6. D430196 - Toner supplying cartridge for an image forming apparatus (2000-08-29),

7. 6104905 - Image forming apparatus of intermediate transfer type (2000-08-15),

8. 6096467 - Positive charging color toner (2000-08-01),

9. D428435 - Developer unit for an image forming apparatus (2000-07-18),

10. 6090514 - Electrophotographic photoreceptor (2000-07-18),

11. D428050 - Toner supplying cartridge for an image forming apparatus (2000-07-11),

12. 6085056 - Toner cartridge with partition wall (2000-07-04),

13. 6085052 - Posture-maintaining photocopier imaging unit casing (2000-07-04),

14. 6073927 - Automatic document feeder (2000-06-13),

15. 6067436 - Image-forming machine (2000-05-23),

Company Overview

Mita Industrial Co., Ltd., headquartered in Osaka, Japan, specializes in image forming technology, focusing on the development and manufacturing of advanced imaging solutions. The company is recognized for its expertise in toner cartridges, electrophotographic materials, and image processing technologies. Mita's innovations also encompass automatic document feeders and photosensitive drums, contributing to efficient and high-quality document handling and printing systems. With a commitment to enhancing imaging performance, Mita plays a significant role in the imaging industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

1,344 Patents

#18 in Osaka

#168 in Japan

#746 in the World

Mita Industrial Co., Ltd.

Forward Citations = 11,542

914 inventors:

Tatsuo Aizawa (53 out of 53 patents)

Nobuhiro Miyakawa (44 out of 44 patents)

Haruo Yamamoto (38 out of 43 patents)

4. Yoichiro Irie (30 out of 31 patents)

5. Yutaka Shigemura (28 out of 30 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Mita Industrial Co., Ltd.. Retrieved from https://idiyas.com/company/mita-industrial-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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